cell theory — noun (biology) the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann • Syn: ↑cell doctrine • Topics: ↑biology, ↑biological science •… … Useful english dictionary
cell phone — noun A portable, wireless telephone, which changes antenna connections seamlessly during travel from one radio reception cell to another without losing the party to party call connection. Syn … Wiktionary
cell doctrine — noun (biology) the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann • Syn: ↑cell theory • Topics: ↑biology, ↑biological science •… … Useful english dictionary
syn|cy|ti|um — «sihn SIHSH ee uhm, SIHT », noun, plural cy|ti|a « SIHSH ee uh, SIHT », Biology. 1. a single cell containing several nuclei, formed either by fusion of a number of cells without fusion of the nuclei, or by division of the nucleus without division … Useful english dictionary
syn|apse — «sih NAPS, SIHN aps», noun, verb, apsed, aps|ing. –n. the place where a nerve impulse passes from one nerve cell to another. A synapse is between the axon of one nerve cell and the dendrite of the other. »Changes at the synapse are thought to be… … Useful english dictionary
Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… … Medical dictionary
cell — I (New American Roget s College Thesaurus) n. protoplasm; cage, jail; compartment, room, vault; dry or wet cell, battery. See organic matter, prison, abode. II (Roget s IV) n. 1. [Any small container or space] Syn. compartment, cavity,… … English dictionary for students
cell — noun 1) a prison cell Syn: room, cubicle, chamber; dungeon, oubliette, lockup 2) each cell of the honeycomb Syn: compartment, cavity, hole, hollow, section 3) … Thesaurus of popular words
Cell division — Division Di*vi sion, n. [F. division, L. divisio, from dividere. See {Divide}.] 1. The act or process of diving anything into parts, or the state of being so divided; separation. [1913 Webster] I was overlooked in the division of the spoil.… … The Collaborative International Dictionary of English
cell membrane — noun a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell all cells have a cell membrane • Syn: ↑cytomembrane,… … Useful english dictionary